Abstract: The invention notably relates to a computer-implemented method of geomodelling. The method comprises providing a pseudo-stratigraphic grid. The pseudo-stratigraphic grid represents a reservoir and has pillars. Each pillar includes respective cells. Each cell has a respective stratigraphic layering index. The method then comprises providing a surface. The surface has a first region and a second region. The second region is complementary to the first region. The method also comprises, for each first pillar intercepted by the first region, determining a respective first stratigraphic layering value based on the relative position of the surface in the first pillar. The method also comprises, for each second pillar intercepted by the second region, determining a respective second stratigraphic layering value by interpolating and/or extrapolating first stratigraphic layering values. This provides an improved solution of geomodeling.

Abstract: The invention notably relates to a computer-implemented method of geomodelling. The method comprises providing a pseudo-stratigraphic grid representing a reservoir having geological units and having pillars which each include respective cells. Each geological unit is represented by a respective portion of the pseudo-stratigraphic grid, and each geological unit has a respective top, a respective base, and a respective stratigraphic style. The method then comprises, for at least one geological unit, computing a top 2D map abase 2D map, defining a gridding constraint, and for each cell of the respective portion, calculating a respective local stratigraphic layering index. The calculation of the respective local stratigraphic layering index is based on the top 2D map, on the base 2D map, on the gridding constraint and on the respective stratigraphic style. This provides an improved solution of geomodeling.

Abstract: The present disclosure relates to a method for adapting an unstructured mesh model of a geological subsurface obtained using measurements of said geological subsurface, to match it to a target, said unstructured mesh model comprising a first reference interface and a second reference interface.

Abstract: The present invention relates to a method for determining a stacked model describing architectural elements from a plurality of architectural element. The method comprises selecting an architectural element, determining merged zone, the merged zone being function of the zone of the selected architectural element and zones of related architectural elements, determining a probabilistic zone, the probabilistic zone being a function of the merged zone, and determining a probabilistic superposition value associated with the determined probabilistic zone, the probabilistic superposition value being a function of the superposition value of the selected architectural element. The previous steps are repeated for each architectural element in the plurality of architectural elements. The method further comprises stacking every determined probabilistic zone in a stacked model according to the determined probabilistic superposition value associated therewith, and providing the stacked model.

Abstract: The present invention concerns a method for adapting a mesh model to make it match a target. The model comprises a plurality of reference interfaces, each reference interface being associated with a target interface in the target. The method comprises, for at least one pair of successive interfaces, defining four intersections between a current alignment and the reference interfaces or the associated target interfaces, and modifying the coordinates for each current corner of the alignment on the basis of the initial coordinates of the current corner, and the four defined intersections, the modified coordinates of the current corner being on the current alignment.

Abstract: The present invention concerns a method for adapting a mesh model to make it match a target. The model comprises a plurality of reference interfaces, each reference interface being associated with a target interface in the target. The method comprises, for at least one pair of successive interfaces, defining four intersections between a current alignment and the reference interfaces or the associated target interfaces, and modifying the coordinates for each current corner of the alignment on the basis of the initial coordinates of the current corner, and the four defined intersections, the modified coordinates of the current corner being on the current alignment.

Abstract: The present invention relates to a method for determining a stacked model describing architectural elements from a plurality of architectural element. The method comprises selecting an architectural element, determining merged zone, the merged zone being function of the zone of the selected architectural element and zones of related architectural elements, determining a probabilistic zone, the probabilistic zone being a function of the merged zone, and determining a probabilistic superposition value associated with the determined probabilistic zone, the probabilistic superposition value being a function of the superposition value of the selected architectural element. The previous steps are repeated for each architectural element in the plurality of architectural elements. The method further comprises stacking every determined probabilistic zone in a stacked model according to the determined probabilistic superposition value associated therewith, and providing the stacked model.